Stay updated with real-time air quality in Limerick, Pennsylvania featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
45
Good
Limerick, Pennsylvania
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.81 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
11.29 μg/m³
0
55
155
255
425
605+
49.22 ppb
0
55
71
86
201
201+
0.22 ppb
0
36
76
186
605
1005+
4.17 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Limerick, Pennsylvania
Limerick, Pennsylvania
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AQI 45
Good
3.81μg/m³
PM2.5
11.29μg/m³
PM10
49.22ppb
O3
0.22ppb
SO2
4.17ppb
NO2
0.24ppm
CO
AQI 47
Good
4.25μg/m³
PM2.5
20.63μg/m³
PM10
50.69ppb
O3
0.23ppb
SO2
4.31ppb
NO2
0.24ppm
CO
AQI 47
Good
4.22μg/m³
PM2.5
20.62μg/m³
PM10
50.84ppb
O3
0.24ppb
SO2
4.32ppb
NO2
0.24ppm
CO
AQI 45
Good
4.17μg/m³
PM2.5
18.71μg/m³
PM10
49.19ppb
O3
0.22ppb
SO2
4.36ppb
NO2
0.24ppm
CO
AQI 44
Good
4.42μg/m³
PM2.5
17.25μg/m³
PM10
46.87ppb
O3
0.22ppb
SO2
4.38ppb
NO2
0.24ppm
CO
AQI 47
Good
4.25μg/m³
PM2.5
20.63μg/m³
PM10
50.69ppb
O3
0.23ppb
SO2
4.31ppb
NO2
0.24ppm
CO
Air quality and pollutant data for Pennsylvania, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Limerick, Pennsylvania is updated every hour for accuracy.
In the past 24 hours, the air quality in Limerick, Pennsylvania was at its worst at 10:00:00 on 2026-07-22.
In the last 24 hours, the best air quality in Limerick, Pennsylvania was observed at 12:00:00 on 2026-07-23.
As of now, the AQI in Limerick, Pennsylvania is 45, indicating Good conditions.
Limerick, Pennsylvania air has the highest levels of O3.
Poor air quality in Limerick, Pennsylvania means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Limerick, Pennsylvania are currently 3.813 μg/m3.
The PM10 concentration in Limerick, Pennsylvania is 11.295 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Limerick, Pennsylvania is 0.243 ppm.
Currently, Limerick, Pennsylvania has a sulfur dioxide (SO2) concentration of 0.224 ppb.
The current ozone (O3) level in Limerick, Pennsylvania at the moment is 49.22 ppm.
Nitrogen dioxide (NO2) level in Limerick, Pennsylvania at the moment is 4.168 ppb.
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